LOS ANGELES (CBSLA.com/AP) — A Democrat has won a special election for a vacant L.A.-area legislative seat, bolstering the party’s supermajority in the state Assembly.

Sebastian Ridley-Thomas, an aide to Los Angeles City Councilman Curren Price Jr., defeated former Culver City mayor and city clerk Christopher Armenta, 60 percent to 36 percent, on Tuesday.

Another Democrat in the race — real estate broker John Jake — captured 4 percent of the vote.

The results were collected from all 168 precincts, according to semi-official results released by the Secretary of State’s Office.

Ridley-Thomas is the son of former state legislator Mark Ridley-Thomas, now chairman of the Los Angeles County Board of Supervisors. He touts his experience as a former legislative aide and has endorsements from labor unions and prominent politicians, including Gov. Jerry Brown and former Los Angeles mayor Antonio Villaraigosa.